BC337TF Equivalent & Substitute Parts

Part Overview

The BC337TF is an NPN bipolar junction transistor manufactured by onsemi, designed for general-purpose switching and amplification applications. This device features a maximum collector current of 800 mA, collector-emitter breakdown voltage of 45 V, and maximum power dissipation of 625 mW in a Through Hole TO-92-3 package. The BC337TF is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) Max	800	mA
Voltage - Collector Emitter Breakdown (Max)	45	V
Vce Saturation (Max)	700 mV @ 50 mA, 500 mA	—
Current - Collector Cutoff (Max)	100	nA
DC Current Gain (hFE) Min	100 @ 100 mA, 1 V	—
Power - Max	625	mW
Frequency - Transition	100	MHz
Operating Temperature (TJ)	150	°C
Mounting Type	Through Hole	—
Package / Case	TO-92-3	—

Substitute Part Grouping Explanation

Substitution of the BC337TF is determined by strict equivalence across the following electrical and mechanical parameters:

Primary Substitution Criteria:

Transistor Type: NPN
Maximum Collector Current (Ic): 800 mA
Collector-Emitter Breakdown Voltage: 45 V
Maximum Power Dissipation: 625 mW
Package Type: TO-92-3 Through Hole
Mounting Configuration: Through Hole

Secondary Compatibility Parameters:

Vce Saturation characteristics
DC Current Gain (hFE) minimum specifications
Operating temperature range
Collector cutoff current

Substitute parts BC33716TA and BC337-25-AP meet the primary substitution criteria. Both devices maintain identical maximum ratings for collector current, breakdown voltage, and power dissipation. Both are packaged in TO-92-3 Through Hole configuration and are compatible with existing PCB layouts designed for the BC337TF.

Parameter Comparison

Parameter	BC337TF (onsemi)	BC33716TA (Fairchild)	BC337-25-AP (MCC)
Product Status	Obsolete	Active	Obsolete
Transistor Type	NPN	NPN	NPN
Current - Collector (Ic) Max	800 mA	800 mA	800 mA
Voltage - Collector Emitter Breakdown (Max)	45 V	45 V	45 V
Vce Saturation (Max)	700 mV @ 50 mA, 500 mA	700 mV @ 50 mA, 500 mA	700 mV @ 50 mA, 500 mA
Current - Collector Cutoff (Max)	100 nA	100 nA	200 nA
DC Current Gain (hFE) Min @ Ic, Vce	100 @ 100 mA, 1 V	100 @ 100 mA, 1 V	160 @ 100 mA, 1 V
Power - Max	625 mW	625 mW	625 mW
Frequency - Transition	100 MHz	100 MHz	210 MHz
Operating Temperature (TJ)	150°C	150°C	−55°C to 150°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	TO-92-3	TO-92-3	TO-92-3

Engineering Selection Recommendations

BC33716TA (Fairchild Semiconductor) is the primary substitute for BC337TF applications. This device maintains identical electrical specifications across all critical parameters and is currently in Active product status, ensuring long-term availability and supply chain continuity. The BC33716TA is REACH Unaffected and classified under ECCN EAR99, matching the regulatory compliance profile of the original part.

BC337-25-AP (Micro Commercial Co) is an alternative substitute that meets all primary substitution criteria. This part exhibits enhanced performance characteristics, including higher DC Current Gain (hFE minimum of 160 versus 100) and extended transition frequency (210 MHz versus 100 MHz). The BC337-25-AP also provides an expanded operating temperature range (−55°C to 150°C). However, this part is classified as Obsolete. The BC337-25-AP is RoHS3 Compliant and REACH Unaffected, with ECCN EAR99 classification.

Selection between BC33716TA and BC337-25-AP should be based on product availability requirements and long-term supply chain strategy. BC33716TA is recommended for new designs and applications requiring sustained component availability. BC337-25-AP is suitable for applications where enhanced performance margins and extended temperature range provide design advantages, subject to inventory availability confirmation.

Frequently Asked Questions (FAQ)

Q: Can BC33716TA be used as a direct replacement for BC337TF in existing designs?

A: Yes. BC33716TA is electrically and mechanically equivalent to BC337TF across all critical parameters: maximum collector current (800 mA), collector-emitter breakdown voltage (45 V), power dissipation (625 mW), and TO-92-3 package configuration. No circuit modifications are required.

Q: What is the primary advantage of BC33716TA over BC337TF?

A: BC33716TA is in Active product status, ensuring ongoing availability and supply chain support. BC337TF is classified as Obsolete.

Q: How does BC337-25-AP differ from BC337TF?

A: BC337-25-AP maintains identical maximum ratings and package configuration. Differences include higher DC Current Gain (160 versus 100 minimum), higher transition frequency (210 MHz versus 100 MHz), and extended operating temperature range (−55°C to 150°C versus 150°C maximum). Collector cutoff current is higher at 200 nA versus 100 nA.

Q: Are all three parts pin-compatible?

A: Yes. BC337TF, BC33716TA, and BC337-25-AP are all packaged in TO-92-3 Through Hole configuration with identical pinout and lead spacing, ensuring direct PCB compatibility.

Q: Which substitute part should be selected for new production designs?

A: BC33716TA is recommended for new production designs due to Active product status and assured long-term availability.

Q: Can BC337-25-AP be used in applications requiring the original BC337TF specifications?

A: Yes. BC337-25-AP meets or exceeds all BC337TF electrical specifications. Enhanced performance characteristics (higher hFE and transition frequency) do not create incompatibility in applications designed for BC337TF parameters.

Q: What compliance certifications apply to these substitute parts?

A: All three parts are REACH Unaffected and classified under ECCN EAR99. BC337-25-AP carries additional RoHS3 Compliance certification.

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